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Startup Founding Engineer

Product-minded technical leadership to build your MVP, scale your SaaS, and establish your engineering culture.

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Overview

Tom Smykowski is a startup founding engineer with nearly two decades of product delivery experience, combining hands-on engineering, UX, and product thinking. For founders and CTOs seeking a true technical partner, he provides the ownership needed to take a product from discovery through production, building scalable, user-focused systems from the ground up. His background spans founding his own SaaS company, Websoul, serving as a Staff Software Engineer at high-growth startups like Croissant, and leading major initiatives for platforms like Printify, making him an ideal technical co-founder or early engineering hire for ambitious startups.

What a Founding Engineer Brings to Your Startup

A founding engineer is more than a senior developer. This role is a force multiplier, responsible for translating a founder's vision into a tangible, scalable product while establishing the technical foundations and culture that will support future growth. It requires a unique blend of deep technical skill, strategic product thinking, and leadership without formal authority. The right founding engineer accelerates time-to-market, de-risks technical decisions, and builds a codebase that is a asset, not a liability.

Tom embodies this multifaceted role. His experience ranges from bootstrapping Websoul, a marketing automation SaaS serving over 32,000 businesses, to being the embedded technical leader at Croissant, where he partnered directly with the CEO and CTO on compliance and collaboration features. This journey through different stages of the startup lifecycle, from zero to one and through scaling phases, provides him with the contextual awareness to make the right architectural trade-offs for your specific phase.

For a startup, the wrong technical choice made early can create crippling technical debt. A founding engineer with Tom's breadth guards against this. He evaluates decisions not just for immediate velocity, but for long-term maintainability, team scalability, and cost efficiency. This product-minded approach ensures that engineering effort is directly aligned with business outcomes, whether you're validating an MVP or preparing for a Series A round.

From Zero to One: MVP Development and Technical Strategy

The initial build phase is critical. It's about speed, but also about laying a foundation that won't collapse under its own weight. Tom's methodology focuses on building a minimally viable product that is maximally scalable. He leverages modern, pragmatic stacks like Vue.js, TypeScript, and Supabase to achieve rapid iteration while ensuring the architecture can evolve. His work at Fream, leading frontend for an industrial SaaS with complex design systems and map integrations, demonstrates his ability to handle sophisticated requirements from the outset.

Technical strategy at this stage involves making deliberate choices about infrastructure, data modeling, and team workflows. Tom brings experience setting up AI-assisted software factories, integrating tools like Cursor and Copilot to boost developer productivity from day one. This focus on developer experience (DevEx) and efficient processes is a force multiplier for a small, resource-constrained team, allowing you to do more with less.

Beyond code, a founding engineer must be a strategic partner. Tom engages deeply with founders, product managers, and designers to turn complex, often ambiguous requirements into a clear technical roadmap. He is adept at breaking down a grand vision into manageable, shippable increments, ensuring that every sprint delivers tangible value and moves the needle on key metrics. This collaborative, communicative style is essential for early-stage teams where roles are fluid and alignment is paramount.

Scaling Systems and Teams for Growth

Once product-market fit is achieved, the challenges shift from building something that works to building something that works for millions. Tom has direct experience navigating this transition at scale. At Printify, he was instrumental in the design system and rebrand effort ahead of a major merger, work that had to seamlessly integrate across a frontend team of ~60 engineers serving a platform of over 10 million merchants. This experience is invaluable for a startup preparing to scale.

Scaling involves architectural patterns, performance optimization, and robust DevOps practices. Tom's expertise includes refactoring for performance, implementing effective CI/CD pipelines, and establishing quality gates. He understands how to evolve a monolithic prototype into a modular, service-oriented architecture without halting feature development. His background in compliance-focused software at Croissant also means he builds with auditability, security, and regulatory considerations in mind, which is crucial for B2B SaaS, fintech, or enterprise-focused startups.

As a startup grows, so must its team. A founding engineer plays a pivotal role in hiring, mentoring, and establishing engineering culture. Tom has experience mentoring engineers and leading through influence. He can help define career ladders, implement effective code review processes, and foster a culture of knowledge sharing and continuous improvement. This leadership ensures that the engineering team scales in capability and cohesion alongside the codebase.

Deep-Dive Project Experience Relevant to Founders

Tom's portfolio demonstrates a repeated pattern of taking ownership of complex, business-critical systems. As the founder of Websoul, he built a fintech-grade marketing automation SaaS from scratch, handling everything from the Vue.js and TypeScript frontend to the Supabase backend and complex data grids with AG Grid. This full-stack, founder-level experience means he understands the entire business logic, billing, and user management layers essential to a SaaS product.

His role as Staff Software Engineer at Croissant placed him at the heart of a startup's core product team, working directly with leadership on features central to the platform's value proposition in workplace compliance and collaboration. This experience in a high-stakes, partnership-driven environment is directly transferable to being a key early hire in your startup.

Furthermore, his work with large, established organizations like DeLaval, GE Healthcare, and Unilever provides a complementary perspective. It means he understands enterprise-grade requirements, integration complexities, and the stakeholder management needed when serving large clients. For a B2B startup targeting enterprise customers, this insight is incredibly valuable for designing a product that can meet rigorous procurement and security standards.

The Advantage of a Remote Founding Engineer in Poland

Hiring a founding engineer remotely from Poland offers distinct advantages for startups, particularly those based in the EU, UK, or US. Tom operates with the autonomy and communication discipline required for distributed work, making him a seamless addition to remote-first or hybrid teams. His location allows for effective collaboration across EU and UK time zones, with availability for overlap with US East Coast teams, facilitating daily stand-ups and synchronous planning sessions without unreasonable hours.

This model provides access to top-tier, staff-level engineering talent without the overhead of a Silicon Valley salary, allowing you to allocate more capital towards product development and growth. Tom's engagement flexibility, including full-time, part-time, or B2B contracts, allows founders to structure an engagement that matches their current funding stage and operational needs.

The remote model also encourages documented, async-first communication and robust processes, which are healthy practices for any growing startup. Tom's experience with cross-time-zone collaboration ensures that knowledge is captured and progress is visible, reducing bottlenecks and creating a more resilient team structure from the beginning.

When This is a Good Fit

This is a good fit if you are a founder or CTO seeking a technical partner to own the build-out of your MVP or to scale an existing product. It is ideal if you need someone who can bridge the gap between vision and execution, make foundational architectural decisions, and grow into a leadership role as your team expands. It is a strong match for B2B SaaS, marketplace platforms, or products with complex frontend or compliance requirements. If you value product-minded engineering, clear communication, and a remote-collaboration mindset, Tom's experience as a startup founding engineer can provide the technical leadership and execution capability your venture needs.

Frequently asked questions

What does a startup founding engineer actually do?

A startup founding engineer is a lead technical contributor who owns the product's architecture, codebase, and early technical decisions. They translate the founder's vision into a working product, build the MVP, establish engineering practices, and often grow into a tech lead or CTO role as the company scales.

How does your experience at Websoul and Croissant relate to a founding engineer role?

As founder of Websoul, I built a SaaS from zero to serving 32,000+ businesses, handling all technical aspects. As a Staff Engineer at Croissant, I was a core product team member partnering directly with the CEO/CTO. Both experiences provide the full-spectrum skills needed to be a founding engineer: entrepreneurial ownership and high-stakes collaboration in a funded startup.

Can you work effectively with US-based teams remotely from Poland?

Yes. I work remotely with international teams regularly and am available for overlap with US East Coast time zones. My communication style is built for async collaboration and clear documentation, ensuring seamless integration with distributed teams.

What tech stack do you typically use for building startup MVPs?

I use pragmatic, modern stacks that enable rapid development and easy scaling, such as Vue.js or React with TypeScript on the frontend, and Supabase or similar for backend services. I choose tools based on the product's specific needs, team skills, and long-term maintainability.

Do you only work with early-stage startups, or can you help scale an existing product?

I help at both stages. My experience includes building from scratch (Websoul) and scaling complex systems for large user bases (Printify's platform for 10M+ merchants). I can architect an MVP or modernize and scale an existing codebase to support rapid growth.

Let's talk about your team

Share what you are building, your timeline, and what good looks like. I will reply with an honest take on fit.